This project show How to Measure Humidity and Temperature using Arduino and DHT11, as this DHT11 give temperature in Celsius and humidity in percent and then Arduino read sensor and show on LCD. Also, this circuit is good for checking room, garden or weather and furthermore, it is good for learning how sensor and Arduino […]
Hobby Circuits
Simple LED Flashing Circuit with Arduino Uno
This project for Simple LED Flashing Circuit with Arduino Uno is simple guide to learn electronics and Arduino; also we can learn connect parts and use code to blink LED. Therefore, it look easy but help us learn big and understand hard projects later. Arduino Code: Code Explanation: Circuit Working: Parts List: Components Quantity Resistor […]
Headphone Amplifier Circuit using IC LM4880
Clear, high-quality sound matters in audio electronics; therefore, this article presents a simple headphone amplifier circuit that uses the LM4880 IC, a chip specifically designed for headphone applications. Furthermore, IC LM4880 is with low noise, low distortion and gives good sound with little power; it works with 2.7V to 5V and so it is good […]
Simple Battery Eliminator Circuits using 3 Methods
To begin with, this article shows how to make Simple Battery Eliminator Circuits using 3 Methods with many useful features. When we need steady DC power for devices then battery eliminator is very useful, as there is no need of normal batteries. Furthermore, these circuits change AC from transformer to DC power for electronics; also […]
Simple Positive Voltage to Negative Voltage Converter Circuit
This article for Simple Positive Voltage to Negative Voltage Converter Circuits shows how to change positive DC voltage to negative DC voltage using special converter circuit; also this circuit is useful for many electronic things. One popular and easy way to generate a clock signal is to use the IC 555; also this reliable IC […]
Simple Audio Level Indicator Circuit using IC LM3915
Simple Audio Level Indicator Circuit using IC LM3915 show sound strength with lights, its display driver is good for sound visual circuits. Also, it takes analog voltage and can light up 10 LEDs, LCDs or other displays in line. This circuit uses an LED VU meter, which music lovers enjoy because it displays sound levels […]